Car-bolster.



H. FRIES. GAR BOLSTER.

APPLICATION FILED AUG. 3, 1908.

Patented Mar. 2,

MW N Q Q Q I \I dafllllllllllfa r 'rroia .HEBMAN FRIES, OF MICHIGANCITY, INDIAN A.

CAR-BOLSTER.

Specification of Letters Patent.

at nte March 2', wild.

Application filed August 3, 190a. SmifllNo.45$1510..

To all whom it may concern:

Be it known that I, HERMAN PRIES, a citizen of the United States,residing at Michigan City,in the county of Laporte and State of Indiana,have invented certain new and useful Im rovements in Car-Bolsters, ofwhich the f0 lowing is a specification, and which are illustrated in theaccompanying drawings, forming a part thereof.

The invention relates to bolsters for cars, and is applicable either tobody bolsters or to truck bolsters;

The object of the invention is to secure great strength in a bolster of'comparative lightness and simplicity of construct-1011, and it consistsin a structure hereinafter described, and which is illustrated in theaccompanying drawings, in ,which,

Figure 1 is a longitudina view of a pair of body and truck bolsters,partly in elevation and partly in vertical section; Fig. 2- is abottomplan view of the body bolster,

artly in section; Fig. 3 is a detail plan view of the truck bolster; andFig. 4 is an end view of the body bolster.

The two bolsters are substantially alike, the essential difference beingof design rather than structure. i

Referring particularly to the body bolster, it comprises a pair of channl bars 10, 11 arranged with their web portions vertical and spacedapart, and their flanges di er-ted outwardly or away from each other. Tothe lower flanges of these channel bars there is applied and securelyriveted a bottom. plate 12, the length of which is the same as the lenth of the bolster, and its side edges being reiferably flush with theouter edges of the lb'wer flanges of the channel bars. To the upperflanges of the channel bars there is a )plied and securely rivctcda topplate 13, t is length of which is the same as the length of the bolster,its width, however, being such that its side edges extend beyond theedges of the u per flanges ofthe channel bars.

In on or to lessen the vertical dimension of the bolster adjacent itsends, both for the purpose of affording ample clearance for other partsof. the car and lessening the weigl'it at the parts Wlrel'O the minimumload is carried, the lower portions of the channel bars. 10 and 11 arechamfercd obliquely upwardly toward their ends through approximately onethird of their length. This chamfering removes so muchof the lowerflange of the channel bar, audits place is supplied by to. the innerface of the web of the channel, to which it is securely riveted, itsother leaf bearlng against the inclined edge of the chaming outwardly.At the inner endof the angle bar, its outwardly projecting flange abutsagainst the end of the lower flange of the channel bar, as shown at 15.

The bottom and top plates 12 and 13 are centrally ierced to receive theking bolt 16, and a soc ret block for affording ample bearing for thisbolt is located within the bolster. The body of this block is shown at17. To this body ortion are integrally connects ed a pair of p ates '18,19, which bear against the inner faces 'of the web portions of thechannel bars 10 and 11, to which they are securely riveted. 1 The usualcenter late 20 is secured to the lower face of the b0 y bolster, andcooperates with the usual center plate 21 applied to the upper face ofthe truck bolster. The usual side-bearing plates 22, 23 are secured tothe lower face of the body bolster adjacent its ends, and cooperate withhearing blocks 24, 25 secured to the u per face of the truck bolster.The truck b o ster has channel bars 26, 27, a bottom plate 28, and a topplate 29, which are substantially the same as the corresponding parts ofthe body bolster. Preferably, the top late is of less width than the topplate of the ody bolster, and its side edges may be flush with the edgesof the upper flanges of the channel bars. A hearing block 30 for theking bolt is incorporated. within the truck bolster, and is the same inform as the block 17 in the body bolster In order to afford properclearance for the other portions of the truclgnot shown, the lowerportions of the outer ends of the truck bolster are offset upwardly,these offset portions being connected with the central section of thebolster byinolined portions 31, 32. To suvply the place of the ortionsof the lower angcs of the channel b are removed in thus reducing thevertical dimension of the bolster at its ends, angle bars 33 are securedto the channel bars, the same as in the case of the body bolster,except, of course, that the angle bars are bent to conform to the shapeof the-truck bolster.

one for the body of the car, and the other for the truck, which are ofsubstantially identical an angle bar 14, one leaf of which is appliedfered portion of the channel bar and project-- are which VVhilo thereare shown-a pair of bolsters,

construction, they are not necessarily assotheir chamfered portions, oneleaf of each ciated in pa1rs,'as either may be used with angle barforming a continuation of the another bolster of diflerent construction.flange of the side member, top and bottom Having thus described myinvention, I Elates riveted to the flanges of the side mem- 5 claim:ers, and a king-pin bearing to lock secured In a. bolster incombination, side members within the body of the bolster.

of channel bars having their flanges out- 7 HERMAN FRIES. wardlydirected, the lower faces of such bars Witnesses: being chamferedadjacent their outer ends, H. V. OGDEN,

10 angle bars secured to the channel bars at CLYDE CARLSON.

